AL5816W5-7

Overview

The AL5816W5-7 is a linear LED driver IC from Diodes Incorporated, designed for constant current regulation in single-channel applications. It operates within an input voltage range of 4.5 V to 60 V and delivers a fixed output current of 15 mA. The device supports PWM dimming capabilities and functions reliably across an extended temperature range from -40°C to +125°C. Packaged in a compact SOT-25-5 surface-mount format, it offers a maximum supply voltage of 60 V and a typical operating frequency of 200 kHz. With a maximum power supply current of 11 mA, this component provides efficient drive solutions for low-power LED lighting systems requiring precise current control.

Feature Summary

• Linear topology for stable constant current regulation
• Supports pulse-width modulation (PWM) dimming
• Wide input voltage tolerance up to 60 V
• Extended industrial temperature operation range

Applications

• Low-power LED indicator circuits
• General-purpose LED illumination modules
• Compact electronic display backlighting

Procurement Notes

Verify the specific package variant and suffix codes against official Diodes Incorporated documentation before procurement. Confirm that the required output current and voltage headroom align with the target LED load characteristics. Ensure compliance with RoHS directives if mandated by the end product specifications. Cross-reference the manufacturer part number with authorized distributors to guarantee authenticity and traceability of the semiconductor components.

Selection Notes

Select this component when a simple linear solution is preferred over switching regulators for low-current LED applications. The fixed 15 mA output suits indicators or small arrays where efficiency losses are acceptable for cost and size reduction. Consider the thermal dissipation requirements given the linear nature of the driver. Verify that the input voltage remains within the specified 4.5 V to 60 V window to ensure proper regulation and protection features function correctly.

Part Context

This part belongs to the AL5815/AL5816 series of linear LED drivers from Diodes Incorporated. These devices are engineered for simplicity and reliability in driving single-channel LEDs. The series typically shares similar pinouts and functional blocks, differing primarily in specific current settings or packaging options. They serve as direct replacements for older discrete transistor-based constant current sources in modern compact designs.

Replacement Considerations

Check for AL5815W5-7 as a potential alternative within the same family, noting any differences in current accuracy or specific electrical parameters. Ensure substitute parts maintain the SOT-25-5 footprint and compatible pinout configuration. Verify that any replacement meets the same 60 V maximum voltage rating and temperature specifications.